Davies mentioned there was a workaround mod that can be done by commanding the lamp directly from the INPUT to the microprocessor, instead of from the OUTPUT, The microprocessor still controls the display, but does not control the lamp anymore, so that when it screws up, at least you do not lose the print that you are currently working on.

What this means I really can't say as I've never opened the head up to check out the board. If you find a techie willing to work on it this may be the way to go.